I checked today... the field doesn't have any recently installed lights, but this tweet seems to confirm that the game will be a night game:
We're just 1 month from kickoff under the lights at the Ellis Oval!! #LightsCameraBos #BostonsNESCACTeam #RollBos
I expect a different vibe for the neighborhood with a night game. If successful, it might signal a change in the pattern for the future.